Great Dusky Swift
Great Dusky SwiftGreat Dusky SwiftGreat Dusky SwiftGreat Dusky Swift

Great Dusky Swift

Cypseloides senex

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
20–30% · Possible
overall probability at Serra da Canastra National Park
103 Verified records at Serra da Canastra National Park
October Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The great dusky swift (Cypseloides senex) is a species of bird in subfamily Cypseloidinae of the swift family Apodidae. It is found in Argentina, Brazil, Paraguay, and possibly Bolivia. Wikipedia →

20–30% of wildlife watchers report a Great Dusky Swift sighting in Serra da Canastra National Park, based on 103 days of visitor records from GBIF citizen-science data.

Closest Relatives at Serra da Canastra National Park

Sooty Swift
LC

Sooty Swift

☀️ Diurnal Bird

Cypseloides fumigatus

5–10% · With luck
White-collared Swift
LC

White-collared Swift

☀️ Diurnal Bird

Streptoprocne zonaris

30–40% · Possible
Sick's Swift
LC

Sick's Swift

☀️ Diurnal Bird

Chaetura meridionalis

10–20% · With luck
Fork-tailed Palm-Swift
LC

Fork-tailed Palm-Swift

☀️ Diurnal Bird

Tachornis squamata

Insufficient data
Biscutate Swift
LC

Biscutate Swift

☀️ Diurnal Bird

Streptoprocne biscutata

Insufficient data
White-vented Violetear
LC

White-vented Violetear

☀️ Diurnal Bird

Colibri serrirostris

40–50% · Likely
Planalto Hermit
LC

Planalto Hermit

☀️ Diurnal Bird

Phaethornis pretrei

30–40% · Possible
Swallow-tailed Hummingbird
LC

Swallow-tailed Hummingbird

☀️ Diurnal Bird

Eupetomena macroura

20–30% · Possible
Glittering-bellied Emerald
LC

Glittering-bellied Emerald

☀️ Diurnal Bird

Chlorostilbon lucidus

20–30% · Possible
🐦 No photo available
LC

Fork-tailed Woodnymph

☀️ Diurnal Bird

Thalurania furcata

10–20% · With luck
Sapphire-spangled Emerald
LC

Sapphire-spangled Emerald

☀️ Diurnal Bird

Chionomesa lactea

10–20% · With luck
Black-eared Fairy
LC

Black-eared Fairy

☀️ Diurnal Bird

Heliothryx auritus

Insufficient data

📅 Monthly Probability

5–10
Jan
10–20
Feb
5–10
Mar
10–20
Apr
10–20
May
10–20
Jun
10–20
Jul
20–30
Aug
20–30
Sep
40–50
Oct
20–30
Nov
5–10
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Iguaçu National Park 🇧🇷 Brazil
40–50%
2 Iguazú National Park 🇦🇷 Argentina
30–40%
3 Serra da Canastra National Park 🇧🇷 Brazil
20–30%
4 Chapada dos Guimarães National Park 🇧🇷 Brazil
<5%
5 Emas National Park 🇧🇷 Brazil
<5%
6 Parque Estadual Encontro das Águas 🇧🇷 Brazil
Insufficient data

Quick answers

What are the chances of seeing a Great Dusky Swift in Serra da Canastra National Park?

About 20% of wildlife watchers report a Great Dusky Swift sighting in Serra da Canastra National Park, based on 103 days of visitor records from GBIF citizen-science data.

When is the best time to see Great Dusky Swift in Serra da Canastra National Park?

October has the highest sighting rate for Great Dusky Swift in Serra da Canastra National Park in our monthly data.

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